Interesting postmodern progression as liberal politics and show business continue their increasingly seamless blending. In 1992, it was a novelty when candidate Bill Clinton appeared on Arsenio Hall's chat show with his saxophone and Wayfairers. Then five years later, real-life footage of by-then President Clinton added verisimilitude when carefully inserted into key points of the Jodie Foster sci-fi drama, Contact. On Saturday, Barack Obama willingly appeared in in a sketch on Saturday Night Liveto mock Hillary: